Các câu hỏi tương tự
1.Cho tong S=5+8+11+14...
tim so hang thu 100 cua day
2.Tinh tong S=1+2+22+...+210
tinh tong S = /(1-11)+(1-10)+...+(1-2)/
tinh tong S=1+2+22...+210
bai1:tinh tong S=1.3+3.5+5.7+...+99.101
bai2 :tinh tong S=1.4+4.7+7.10+...+2017.2020
bai 3: tinh tong N=2.4+4.6+6.8+..+100.102
bai 4: tinh tóng=2.6+6.10+10.14+14.18+...+42.46+50.54
bai 5:tinh tongB=2^2+4^2+6^2+...+100^2
bai 6:C=1^2+3^2+...+100^2
bai7: biet 1^2+2^2+3^2+...+10^2=385 tinh tong 2^2+4^2+6^2+...+20^2
bai 8: tinh tong s=1^2+2^2+3^2+...+99^2
Cho S = 1 + 3^2 + 3^4 + 3^6 + ... + 3^98. Tinh tong S va chung minh S chia het cho 10
tinh tong S=2013+2013/1+2+2013/1+2+3+...+2013/1+2+3+...+2012
S=1+101+102+...+1020
TINH TONG
Biet 1^2+2^2+3^2+..+10^2=385
Hay tinh tong cua S=100^+200^2+300^2+..+1000^2
lam co loi giai nhe
Tinh tong S=1/1×2+1/2×3+1/3×4+...+1/2014×2015+1/2015×2016